Evanescent wave amplification and subwavelength imaging by ultrathin uniaxial μ-near-zero material

Evanescent wave amplification and subwavelength imaging by ultrathin uniaxial μ-near-zero material

We demonstrate strong evanescent wave amplification by a thin slab of uniaxial μ-near-zero (UMNZ) material. It is found that while retaining the same amplification effect, the slab can be made arbitrarily thin when the negative permeability along the axis of anisotropy approaches zero. Numerical res...

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Bibliographic Details
Main Author: Yan Zhao
Format: Article
Language:English
Published: AIP Publishing LLC 2014-02-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4866579
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spelling doaj-a254ce0de1734634a1e36086d62ee1a02020-11-25T00:23:29ZengAIP Publishing LLCAIP Advances2158-32262014-02-0142027115027115-610.1063/1.4866579015402ADVEvanescent wave amplification and subwavelength imaging by ultrathin uniaxial μ-near-zero materialYan Zhao0International School of Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, ThailandWe demonstrate strong evanescent wave amplification by a thin slab of uniaxial μ-near-zero (UMNZ) material. It is found that while retaining the same amplification effect, the slab can be made arbitrarily thin when the negative permeability along the axis of anisotropy approaches zero. Numerical results show that using a single layer of split-ring resonators (SRRs) with its thickness equal three thousandth of the incident wavelength (λ/3000), a subwavelength source distribution with λ/4 resolution can be transferred to a distance of λ/3.http://dx.doi.org/10.1063/1.4866579
collection DOAJ
language English
format Article
sources DOAJ
author Yan Zhao
spellingShingle Yan Zhao
Evanescent wave amplification and subwavelength imaging by ultrathin uniaxial μ-near-zero material
AIP Advances
author_facet Yan Zhao
author_sort Yan Zhao
title Evanescent wave amplification and subwavelength imaging by ultrathin uniaxial μ-near-zero material
title_short Evanescent wave amplification and subwavelength imaging by ultrathin uniaxial μ-near-zero material
title_full Evanescent wave amplification and subwavelength imaging by ultrathin uniaxial μ-near-zero material
title_fullStr Evanescent wave amplification and subwavelength imaging by ultrathin uniaxial μ-near-zero material
title_full_unstemmed Evanescent wave amplification and subwavelength imaging by ultrathin uniaxial μ-near-zero material
title_sort evanescent wave amplification and subwavelength imaging by ultrathin uniaxial μ-near-zero material
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2014-02-01
description We demonstrate strong evanescent wave amplification by a thin slab of uniaxial μ-near-zero (UMNZ) material. It is found that while retaining the same amplification effect, the slab can be made arbitrarily thin when the negative permeability along the axis of anisotropy approaches zero. Numerical results show that using a single layer of split-ring resonators (SRRs) with its thickness equal three thousandth of the incident wavelength (λ/3000), a subwavelength source distribution with λ/4 resolution can be transferred to a distance of λ/3.
url http://dx.doi.org/10.1063/1.4866579
work_keys_str_mv AT yanzhao evanescentwaveamplificationandsubwavelengthimagingbyultrathinuniaxialmnearzeromaterial
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